SCHONBERGER, R. J. <br/><br/>
Operations Management: Improving Customer Services. 

 - 4th Ed. 
 - Boston,  Irwin,  1991. 
 - xvii, 926p.: ill.; figure, picture  Glossary & Index  22cm 
<br/><br/><label>ISBN: </label>0-256-08240-5 
<br/><br/><label>Dewey Class. No.: </label>658.5 SCH